Window-sash holder and alarm.



PATENTED JUNE 6, 1905.

.- v W. F. EVANS.

WINDOW SASH HOLDER AND ALARM.

, APPLICATION FILED AUG. 31, 1904.

7% m J/(// J INYEN Ton /y'llz'am PIA an J ya/rm A ro/Mm Patented June 6,1905.

PATENT OFFICE,

WILLIAM F. EVANS, OF ASTORIA, NEW YORK.

WINDOW-SASH HOLDER AND ALARM,

SPECIFICATION forming part of Letters Patent No. 791,614, dated June 6,1905.

Application filed August 31,1904. Serial No. 222,800.

To all whom, it may concern:

Be it known that I, WILLIAM F. EvANs, a citizen of the United States,residing at Astoria, in the county of Queens and State of New York, haveinvented certain new and useful Improvements in Window-Sash Hold: ersand Alarms, of which the following is a specification, such as willenable those skilled in the art to which it appertains to make and usethe same.

This invention relates to Window-sashes; and the object thereof is toprovide a device which will operate to hold the sash at any desiredpoint of adjustment and which will also produce an alarm if an attemptbe made to ralse or open a sash provided with my improvement.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which Figure 1 is a front view of awindow-frame and showing two sashes mounted thereon,

. one of which, the bottom sash, is provided with my improvement; andFig. 2, a similar view, on an enlarged scale, part of the constructionin each view being shown in section. In the drawin s forming part ofthis specification I have s own at a an ordinary window-frame providedwith the usual upper sash b and lower sash c, and in said drawings Ihave shown my improvement appliedand operating in connection with thelower sash c. In the practice of my invention I form in the side of theframe, adjacent to the sash, a

chamber a and secure therein a metal casing (1, having a facelate (1which is secured to the frame in any esired manner, and mounted in thecasing'd is a ratchet-wheel e, the shaft or axle e of whichis mounted inand movable in slots (i formed in the sides of the casin a and one ofwhich is shown in full lines 1n Fig. 1 and the other in dotted lines inFig. 2, and as thus mounted the wheel 6 is free to move toward and fromthe sash.

In the back part of the casing a is placed a plate-springl ,one end ofwhich is secured to a pin f 2 and t e other end of which rests onanother pin, f and secured to one of said pins, the pin f as shown inthe drawings, is a yoke-spring g, the cross-head g of which bears on thewheel e and on the central por- I tion of the spring f It will beunderstood,

of course, that the casing d is not absolutely essential, and theplate-springf and yokeshaped spring 9 may be mounted in the chamber d,if desired, as may also the wheel e.

The spring f forces the wheel 6 in the direction of the sash c, and saidwheel bears firmly on said sash or the said sash bears firmly on saidwheel, and in practice when the sash is in position the wheel 6 isforced backwardly almost entirely within the casing d or within thechamber a When the parts are in this position, the sash will be securelyheld a ainst rattling or any movement eX- cept w en moved by force, andany attempt to raise the sash will turn thewheel e in the direction ofthe arrow as, and the cross-head g of the oke-sha ed s ring in assinover the teeth of the vf heel will cau e a ra ttling. sound or alarmwhich may be distinctly heard, and the sash may be lowered at any timewithout causing this sound or alarm and without turning the wheel e.

It will beunderstood that if this device is applied to the upper sashthe parts will be so arran ed that the lowering of said sash will turn te wheel e and cause the rattling sound or alarm above referred to.

The plate-spring f may be secured in position in any desired manner, theonly ob- -ject in this connection being that said spring will operate toforce the wheel a in the direction of the sash and will yield sli htlyto permit of the movement of said w eel toward and from the sash.

Having fully described my invention,what I claim as new, and desire tosecure by Letters Patent, is

1. A window frame and sash, one of said parts being provided with achamber which opens outwardly, a ratchet-wheel mounted in said chamberand movable toward and from the other part, a plate-spring secured insaid chamber back of said ratchet-wheel and adapted to force said wheeloutwardly, and a yoke-shaped spring mounted in said tween saidplate-spring and said wheel and bears on said wheel, substantially asshown and described.

2. In a device of the class described, a casing adapted to be secured ina window frame or sash to form a chamber therein which opens outwardly,said casing being provided with parallel sides and a back and the sidesthereof being provided with slots which range forwardly and backwardly,"a ratchetwheel mounted in said casing and the shaft of which is movablein said slots, a s ring placed in said casing back of said whee and ayoke-shaped device secured in said casing between said spring and saidwheel and the cross-head portion of which bears on said wheel betweensaid spring and said wheel, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing witnesses, this 30th day of August,1904.

WILLIAM F. EVANS.

WVitnesses:

C. J. KLEIN, F. A. STEWART.

frame and the cross-head of which fits be- I adapted to force said wheeloutwardly, and I5

